User`s manual

2-3-2 About Intel Pentium 4 478-pin CPU

This motherboard provides a 478-pin surface mount, Zero Insertion Force (ZIF) socket,

referred to as the mPGA478B socket supports Intel Pentium 4 processor in the 478 Pin

package utilizes Flip-Chip Pin Grid Array (FC-PGA2) package technology.

The CPU should have a cooling FAN attached to prevent overheating. If this is not the case,

then purchase a correct cooling FAN before you turn on your system.

WARNING!

Be sure that there is sufficient air circulation across the processor’s heatsink

and CPU cooling FAN is working correctly, otherwise it may cause the

processor and motherboard overheat and damage, you may install an

auxiliary cooling FAN, if necessary.

To install a CPU, first turn off your system and remove its cover. Locate the ZIF socket and

open it by first pulling the level sideways away from the socket then upward to a 90-degree

angle. Insert the CPU with the correct orientation as shown below. The notched corner should

point toward the end of the level. Because the CPU has a corner pin for two of the four

corners, the CPU will only fit in the orientation as shown.

CPU ZIF mPGAB Socket

Colden Arrow

mPGA478B

When you put the CPU into the ZIF socket. No force require to insert of the CPU, then press

the level to Locate position slightly without any extra force.